Home / 42,079.55-63,112.11-15,424.12

Finding the Fourth Proportional to 42,079.55, 63,112.11 and 15,424.12

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Solution

The fourth proportional to 42,079.55, 63,112.11 and 15,424.12 is: 23,133.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,079.55 : 63,112.11 = 15,424.12 : x
  2. Step 2: Convert to fraction form
    42,079.55/63,112.11 = 15,424.12/x
  3. Step 3: Cross multiply
    42,079.55x = 63,112.11 × 15,424.12
  4. Step 4: Simplify right side
    42,079.55x = 973,448,865.90
  5. Step 5: Solve for x
    x = 973,448,865.90/42,079.55
  6. Step 6: Final answer
    x = 23,133.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.